BusCard (Revision A) Project

Here I will be presenting information on a very rare BusCard (Rev. A) I have. The BusCard (and subsequent BusCard II) were manufactured by Batteries Included Ltd. of Toronto, Canada. My BusCard appears to have been designed and/or manufactured in 1983. I used it to provide IEEE-488 functionality to my Commodore 64 in order to use a 4040 disk drive and 8023P printer.

Properties of Original BusCard
  • Picture gallery
  • Manual (45 MB pdf) - I have scanned the manual into an Acrobat (.pdf) file. The manual was accompanied by a rather long and convoluted errata and I have tried to cut and paste the errata items into the manual. The page numbering in the table of contents needs to be corrected when I get time.
  • Schematic (hand-drawn) (7.5 MB pdf)
  • Parts layout as a pdf file (10 KB) and as a Microsoft Visio Drawing (71 kB .vsd file).
  • Parts list (text file)
  • Datasheets:
    • NEC D8255AC-5 8-bit, 4 MHz, Programmable Peripheral Interface (367 KB pdf)
    • Texas Instruments TMS 2564 65,536-bit, Ultraviolet-Erasable, Electrically Programmable Read-Only Memory (EPROM) (447 KB pdf)
    • 75160 IEEE-488 GPIB Octal Bus Transceiver (2.4 MB pdf)
    • 75161 IEEE-488 GPIB Octal Bus-Management and Data-Transfer Transceiver (2.8 MB pdf)
    • 1N4148 Small Signal Diode, 200 mA, 100 V (975 KB pdf)
    • 2N3904 NPN Transistor, 200 mA, 40 V (416 KB pdf)
    • 2N4401 NPN Transistor, 600 mA, 40 V (976 KB pdf)
    • 74LS00N Quadruple 2-Input Positive-NAND Gates (3.2 MB pdf)
    • 74LS04N Hex Inverting Gates (3.2 MB pdf)
    • 74LS08N Quadruple 2-Input Positive-AND Gates (3.6 MB pdf)
    • 74LS21N Dual 4-Input Positive-AND Gates (1.9 MB pdf)
    • 74LS32N Quadruple 2-Input Positive-OR Gates (3.2 MB pdf)
    • 74LS139N Dual 1-of-4 Decoder/Demultiplexer (1.8 MB pdf)
    • Resistors 1/4 Watt, 5% Tolerance (570 KB pdf)
    • Resistor Network SIL Resistor Network, 4.67 kohm, 10 Pins, 9 Resistors, Bussed Arrangement (356 KB pdf)
    • CK05BX104K Ceramic Capacitor, 0.1 uF, 50 V, Radial (133 KB pdf)
    • 8-SPST DIP Switch (468 KB pdf)
    • Female Edge Connector 44-Contact (2-Rows of 22 Contacts), 0.1" (2.54 mm) Contact Spacing (Pitch), 0.2" (5.08 mm) Row Spacing, 0.062" (1.57 mm) Card Thickness, 3A, 250 V (4 MB pdf)
    • Shunt Female, 2-Position, 0.1" (2.54 mm) Contact Spacing (Pitch), 0.347" (8.81mm) Height (21 KB pdf)
Properties of Re-Engineered BusCard [UNDER CONSTRUCTION]

P. David Buchan pdbuchan@yahoo.com

May 16, 2017